This refers to a person who is wheeling with bottom of the barrel standards. The phrase refers to "Trolling" as when fishing, when one tries to catch bottom feeders by running a lure along the bottom of the lake. The "Slizz" part represents the scum that one will inevitably catch when wheeling with such low standards.

Short for ultimate bias. Typically used by fangirls and fanboys to describe their favourite celebrity amongst the many that they are fans of.